Dej-xim wastewater kho khoom - ＮＰＯ Corporation si lub ntsej muag familiar nyob cheeb tsam muaj teeb meem thiab phiaj tsaam thawj kawm ua ib tug nyab xeeb thiab noj qab nyob zoo neej. - ＮＰＯ Corporation si lub ntsej muag familiar nyob cheeb tsam muaj teeb meem thiab phiaj tsaam thawj kawm ua ib tug nyab xeeb thiab noj qab nyob zoo neej.